Amalgamator



(No Model.)

W. & G. W. JOHNSON.

AMAL GAMATOR.

Patented Feb. 26, 18189.

Fig? 5.

NY PETERS Phoio-Llthognphen \Vashlngluh. D. c.

ITED STATES PATENT rrrcij,

AMALGAMATOR.

SPECIFICATION forming part of Letters Patent No. 398,406, dated February26, 1889.

Application filed January 23, 1888, Serial No. 261,671. (No model.)

To all whom it may concern.-

Be it known that we, \VILLIAM JOHNSON and GAREY WILLIAM JOHNSON,residing at Portland, in Multnomah county, State of Oregon, bothcitizens of the United States, have invented certain new and usefulImprove ments in Amalgamators, of which the following is aspecification.

The invention is designed more particularly as an improvement upon thedevice shown in our patent, No. 377,760, dated February 14, 1888. Thenovelty resides in the peculiar combinations and the construction,arrangement, and adaptation of parts, all as more fully hereinafterdescribed, shown in the drawings, and then more particularly defined bythe appended claims.

In the accompanying dra\vings,u-'l1ich, with the letters of referencemarked thereon, form a partof this specification, Figure l is a verticalsection of the entire m achine, showing also the feeding-pipes for theore-pulp and water. Fig. 2 is a vertical section of the turret-disk, thepost upon which the turret revolves, the lubricator, and the shaft whichrevolves the turret-disk when the machine is in motion. Fig. 3 is avertical section and top view of the rings and cross-bars, and Fig. 4 isa top view of the quicksilver-gage.

Similar letters refer to like parts throughout the several views.

Referring now to the details of the drawings by letter, A designates ametallic bowl; B, a metallic disk mounted on the shaft g, to which apulley or sheave, V, is fastened to give a rotary motion to the disk B.The bowl A is round, and is cast in one piece, and consists of the innerchamber, a, to receive the mercury, and an outer space, O, arranged sothat the discharged ore-pulp from chamber a slides down over the sides(Z or four angular elevated edges, c, to the discharge-pipes E, fromwhich the worthless pulp can be conveyed to a suitable place. In thecenter of the inner chamber, a, is a post, f, in the top of which isfastened a brass bushing, H, on which the turret'disk B rests, andthrough which the shaft g of the said turret-disk revolves.

The turret-disk B is formed of two piecesthe main body or shaft-holder hand the shaft 9, secured together by means of the nut G. Said diskrevolves and rests on the bushing H in the top of the post f in theinner chamber, a, of the bowl A, so that the level space Z of the bottomside of the turretdisk will be submerged in the mercury in the chambera.

The ore-pulps are conveyed by means of the pipes t' into the inner partof the turret of turret-disk B, falling into the space 13 of theturret-disk B, and thence into the mercur in the chamber a, as well asthe water to spread the pulp, which is let into the turret by the pipeis.

The shaft-holder h is fastened into the inner part of the turret-disk B,so as to leave ample room, 3, for the pulp out of the pipe 2' and waterout of pipe is to pass.

The bottom part of the turret-disk B has an even surface, Z, and abeveled surface or edge, a. By the revolving of the turret-disk B thesurface Zwill spread and keep the ore-pulp into the mercury long enoughto extract all. the precious metals that the pulp contains and allowingthe worthless pulp to reach the outer surface or edge, 10, of the diskpartof the turret-disk B, so that it will flow into the open space 0 ofthe chamber a. To force this worthless pulp into the outer space, C, ofthe bowl A, four or more small streams of water running through pipes rand playing on the upper surface, X, of the turret-disk B will, throughthe rotation of the turretdisk B, wash the pulp gradually andcontinuously into the outer space, from where it is conveyed to anysuitable place by the pipes E.

The inner chamber, a, of the bowl A, when filled with mercury, and thelower surface, Z, of the turret-disk partly submerged in the mercury, inmaking its revolutions, causes the mercury in the inner chamber, a, torevolve, and sometimes to sway from side to side, and should theparticles of pulp vary in size it causes the mercury to spill over theedges of the inner chamber, a, into the outer space, 0, and thencethrough the waste-pipes E and be lost. To prevent this and to make ourmachine more perfect in its operation, we place in the inner chamber, a,of the bowl A a number of metallic rings, R, varying in diameter atequal distances apartfrom each other from the post f to the outer sidesof the inner chamber, a.

The metallic cross-bars S are placed between each of the metallic ringsB, so that no two cross-bars in adjoining circles are on a line witheach other, as shown in Fig. 3 of the drawings. The metallic rings R andcrossbars S are firmly attached to the bottom of 5 the inner chamber,at, and through the rings are holes a, so that the mercury can pass fromsection to section. The inner or center ring is somewhat higherthan theothers and embraces and helps to steady the post f, as shown in Fig. 1.The outer ring is also extended upward and snugly fits against the wallof the chamber a, as seen in the same figure.

The metallic rings R are of sufficient height to leave a space of aboutone-eighth of an inch between the top edge of the same and the lowersurface, 7, of the turret-disk B.

The lubricator consists of a tube, 11 inserted inside of the shaft g andextending down to where the cone h of the turret-disk B rests andrevolves upon the seat 1) of the bushing H, through which the oil canrun into the seat I). On the outer edge of the bushing H there is anelevated flange (the top of which is lower than the seat 19') forming agutter, F, to catch the surplus oil from the seat I). There is aplurality of ducts, D, to carry the said oil off through a hollow spacebetween the shaft 9 and the sides of the post f.

By placing the rings R and cross-bars S as 0 above described, therebyholding the mercury in sections, the mercury keeps its equilibrium, andall swaying, rotating, or slopping over of the mercury is prevented.

The mercury-gage Q is a round metallic 3 5 bowl attached to the bowl Aand communicating with the inner chamber, a, by means of the pipe 15, sothat the mercury can pass freely from the inner chamber, a, to themercury-gage Q.

Penetrating up through the center of the bowl Q is an adjustable pipe,14, so that its top can be adjusted to a level with a surface of themercury z in the inner chamber, a, so that the surplus, accumulating asthe mereury takes up the precious metals or precious metals and mercury(when the amalgamator is operating on tailings containing mercury) andincreases in bulk, will be carried olt by the pipe u to some saferepository.

To the lower end of the shaft-holder 7L is (letacha-bly secured,preferably by screwing it on, a flaring copper ferrule, j, extendingdown intothe mercury, which prevents the pulp from lodging around thepost f, and also aidsin forcing the pulp over the beveled surface n ofthe disk of the turret-disk B. This ferrule projects below the bottomface of the disk into one of the sections or chambers formed between twoof the rings R, as shown in Fig. 1.

What we claim as new is- 1. The combination, with the stationary rings Rand the revolving tlll16'[-dlSk, of the outwardly-flarin g ferrule j onthe lower end of the shaft-holder 71 of said disk and extended below thebottom of the level face Z of said disk into the space between two ofsaid rings, substantially as shown and described.

2. The combination, with the bowl A and rotary turret-disk, of the ringsR, secured within the inner chamber, a, of said bowl, and provided neartheir lower edge with apertures c, and the cross-bars S, dividing thespace between said rings into separate compartments and arranged withthe two adjacent 75 bars out of line, substantially as shown anddescribed.

\VILLIAM JOHNSON. GARE'Y \YILLIAM JOHNSON.

Witnesses:

J. M. WILLIAMs, E. J. GLASS.

